Illuminating device for copyholders



March 10, 1942. E, SHANTZ: 2,275,562

ILLUMINATING DEVICE FOR GQPYHOLDERS Filed Jan. 16;1939

BY v v A Patented Mar. 10, 1942 UNITED STATES PATENT OFFICE ILLUMINATIN G DEVICE FOR COPYHOLDERS Edgar Shantz, Rochester, N. Y., assignor to Copy Right Mfg. Corporation, New York, N. Y., a corporation of New York Application January 16, 1939, Serial No. 251,174

This invention relates to illuminating attach- 1 Claim.

ments and has for one of its objects to provide a novel illuminating device for attachment to copyholders to efliciently illuminate the work supported thereon for copying purposes.

Another object of this invention is to provide the illuminating device with a lamp bracket with which the lamp may be efiiciently adjusted relative to the copy holding member of the copyholder.

A further object of this invention is to provide the illuminating device with a novel form of clamping member with which the device may be securely and rigidly fastened to the copyholder.

A still further object of the invention is topro vide. a long lamp bracket and a support therefor with which the illuminating light may be held adjustably spaced from the copyholder and the typewriter so that both the copy work on the copy holder and the copied work in the typewriter are uniformly illuminated at all times.

These and other objects and attendant advantages of the invention will become more clearly apparent from the detailed description thereof Which follows, reference being had to the accompanying drawin in which- Figure l is a rear elevation of the upper portion of a copyholder with the illuminating device attached thereto.

Figure 2 is a side elevation of the parts illus trated in Figure 1.

Figure 3 is an enlarged detail sectional View of one of the clamping members, the section being taken on the line 3--3 of Figure 1.

Figure 4 is an enlarged detail sectional view of a modified form of clamping member.

Figure 5 is an enlarged cross section of the lamp of the illuminating attachment.

Figure 6 is an enlarged longitudinal section of one end of the lamp of the illuminating attach ment.

An efiicient illumination of a copyholder requires that the light source be located so that it will not interfere with the movement of the copy holding plate and be adjustable relative thereto in order to throw a clear non-glare light onto the portion of the work to be copied from the copy plate and the type written copy as it is produced by the typewriter while the eyes of the operator of the typewriter are shielded from direct light cal The upright member is provided at the top with a stiffening flange 3 which extends the width of the member so that the bracket for the support of the illuminating lamp may be readily clamped thereto and supported thereon. In some copyholders the flange 3 projects away from the back of the copy plate. as illustrated in Figures 1, 2 and 3 and in others this flange projects toward the back of the copy plate as illustrated in Figure 4.

The lamp bracket 4, which supports the lamp housing 5, is attached to the flanged edge 3 of the upright member I and for this purpose is provided with a pair of clamps E, 6. Each of these clamps comprises a pair of clamping plates 1, l which are connected and adapted to be drawn together by a pair of clamping bolts 8, B. In the attachment of the clamps to the form of flanged edge illustrated in Figures 1, 2 and 3, the upper clamping plate 1 is straight and has a depending flange 9 so that the end of this clamping plate may rest on top of the flange 3 and engage behind the upright member I as illustrated in Figures 2 and 3. The lower clamping plate IA is provided with a substantially semicylindrical seat It) for the tubular bottom section of the bracket 4 to engage thereinto and provide for its rotation therein. One of the clamping bolts 8 connects the clamping plates 1 and 1A near the outer ends thereof in front of the seat It and the other of these clamping bolts connects the clamping plates near the inner ends thereof in back of the seat H).

The inner end of the bottom clamping plate EA is provided with the depending flange i l which is adapted to be angularly drawn into the corner of the flanged upper edge of the upright member I as illustrated in Figure 3. This takes place when the inner clamping bolt 8 is tightened with its wing nut BA. After the clamp is thus rigidly fastened to the upright, the outer clamping bolt 8 may be tightened with its wing nut 8A to draw the forward portion of the clamping plates 1 and 1A together and clamp the tubular bottom of the bracket 4 into the seat It The lamp bracket 4, as illustrated in Figure 1, comprises a substantially rectangular frame formed up of a single length of tubing in such manner that the free ends thereof are located at the top in line with each other and spaced to rotatably support the lamp housing 5 between them. The disc shaped ends of the lamp housing 5 are suitably swiveled on the free ends of the lamp bracket and a socket I2 is attached to one or both ends thereof within the lamp housing for the support of one or more incandescent lights. The edges on opposite sides of the opening in the lamp housing are bent outwardly to provide the angular shields I3, l3 which assist in directing the light rays over the area on the copy plate and the top of the typewriter which is to be illuminated by the lamp while at the same time shielding the eyes of the operator from the light. The lamp, as illustrated in Figures 1 and 2, is supported by its bracket at a considerable distance in front of the copy plate and its pivotal mounting in the clamps 6, 6 provide for the adjustment of the bracket into any position in front of the copy plate as illustrated inlFigure 2.' In this way the work supported on thecopy plate may be illuminated in the most advantageous manner and in such a way that the light will not cause a glare on the work to be copied.

The electric cord M which leads to themcandescent light enters the bottom portion of the tubular bracket inthe middle thereof and extends in the tubing to the socket or sockets within the lamp housing.

. In the modified form ofthe clamp illustrated in Figure 4 a clamping plate 13 is fastened to the upright member I by means of the set screw 10. Located on top of the clamping plate 13 is the clamping plate 1D so that the bracket 4 can extend between the clamping plates 13 and 1D and be clamped therebetween by means of the clamping bolts 8, 8.

I claim:

A detachable lamp for copyholders having an upright member with a flanged top and a copy plate in front of said upright member, comprising a substantially rectangular frame bent up from a rod like member, a lamp housing swiveled between the free ends of the rod like member at the top of said bracket, a light socket within said lamp housing, a pair of clamping plates embracing the rod like member at the bottom of said rectangular bracket, a substantially vertical clamping flange at the inner end of each of said clamping plates and a clamping bolt between said clamping plates for angularly drawing the clamping flange of one of said clamping plates toward the clamping flange of the other clamping plate for engagement with the flanged top of the up right member between them and a second clamping bolt for drawing together the outer ends of said clamping plates against said rod like member to rotatably hold said frame between said clamping plates so as to have said frame embrace said copy plate and provide for the movement of the lamp housing by said frame in front and above said copy plate.

' EDGAR SHAN'IZ. 

